From: Chunyang Xu <mail@xuchunyang.me>
To: Emanuel Berg <moasen@zoho.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: [el-search] How to search string excluding docstring?
Date: Wed, 27 Dec 2017 13:38:43 +0800 [thread overview]
Message-ID: <m2fu7wbuho.fsf@xuchunyang.me> (raw)
In-Reply-To: <867et9sjd0.fsf@zoho.com>
Emanuel Berg writes:
> However here there is a collision between the
> two worlds. Because where is point?
> Over which element to begin with, when the
> query is executed? If one knows that, one could
> simply get the defun as a list (which it
> already is) and ask, "is the 4th element
> a string?". If it is, and if point's at it in
> the buffer, then yes it is a docstring.
I think point is at the beginning of the string, the following assumes
this to work. I compare point with the point of docstring (if any) to
see if it is a docstring.
#+begin_src emacs-lisp
;; FIXME: Update this list every time el-search starts. How?
(defvar el-search--symbols-with-doc-string
(let (symbols)
(mapatoms
(lambda (sym)
(and (fboundp sym)
(get sym 'doc-string-elt)
(push sym symbols))))
symbols)
"A list of symbols which support doc-string.")
(defun el-search--doc-string-p ()
"Return t if point is at docstring."
(pcase (save-excursion
(backward-up-list)
(read (current-buffer)))
(`(,(and symbol (guard (memq symbol el-search--symbols-with-doc-string)))
,_ . ,_)
(let ((op (point)))
(save-excursion
(backward-up-list)
(forward-char)
(ignore-errors
(forward-sexp (1+ (get symbol 'doc-string-elt)))
(backward-sexp)
(= op (point))))))))
(el-search-defpattern doc-string (&rest regexps)
"Match any documentation string that is matched by all REGEXPS."
`(and (string ,@regexps) (guard (el-search--doc-string-p))))
(el-search-defpattern s (&rest regexps)
"Match any string (excluding doc string) that is matched by all REGEXPS"
`(and (string ,@regexps) (guard (not (el-search--doc-string-p)))))
#+end_src
next prev parent reply other threads:[~2017-12-27 5:38 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.6328.1514197667.27995.help-gnu-emacs@gnu.org>
2017-12-25 12:00 ` [el-search] How to search string excluding docstring? Emanuel Berg
2017-12-25 13:57 ` Chunyang Xu
2017-12-25 14:34 ` Michael Heerdegen
[not found] ` <mailman.6334.1514210258.27995.help-gnu-emacs@gnu.org>
2017-12-25 14:08 ` Emanuel Berg
2017-12-25 17:55 ` tomas
[not found] ` <mailman.6358.1514224565.27995.help-gnu-emacs@gnu.org>
2017-12-25 18:11 ` Emanuel Berg
2017-12-25 19:14 ` tomas
[not found] ` <mailman.6366.1514229270.27995.help-gnu-emacs@gnu.org>
2017-12-25 19:36 ` Emanuel Berg
2017-12-25 21:20 ` tomas
[not found] ` <mailman.6371.1514236843.27995.help-gnu-emacs@gnu.org>
2017-12-25 21:56 ` Emanuel Berg
2017-12-26 2:44 ` Emanuel Berg
2017-12-26 13:34 ` Emanuel Berg
2017-12-26 13:48 ` Jean-Christophe Helary
[not found] ` <mailman.6381.1514296097.27995.help-gnu-emacs@gnu.org>
2017-12-26 15:19 ` Emanuel Berg
2017-12-27 5:38 ` Chunyang Xu [this message]
2017-12-27 13:58 ` Michael Heerdegen
[not found] ` <mailman.6406.1514353148.27995.help-gnu-emacs@gnu.org>
2017-12-27 6:58 ` Emanuel Berg
2017-12-25 19:39 ` Emanuel Berg
2017-12-25 10:27 Chunyang Xu
2017-12-25 10:40 ` Jean-Christophe Helary
2017-12-25 12:00 ` Skip Montanaro
2017-12-25 18:04 ` Michael Heerdegen
2017-12-25 14:56 ` Michael Heerdegen
2017-12-25 16:58 ` Chunyang Xu
2017-12-25 17:51 ` Michael Heerdegen
[not found] ` <mailman.6340.1514213787.27995.help-gnu-emacs@gnu.org>
2017-12-25 15:50 ` Emanuel Berg
2017-12-25 16:59 ` Michael Heerdegen
[not found] ` <mailman.6351.1514221174.27995.help-gnu-emacs@gnu.org>
2017-12-25 18:04 ` Emanuel Berg
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